WheelsetsGlen O'RourkeNovember 16, 2015Wheels, IrwinComment Irwin 38mm Carbon Clincher Wheelset First impressions count. We test some of the latest carbon wheels to hit the market, the Irwin 38mm Carbon Clinchers.High performance, robust wheels, that on first impressions, look great and take on the bigger players. WheelsetsGlen O'RourkeNovember 16, 2015Wheels, IrwinComment